What this means
The IEEE assigned the MA-L block 28CD9C to Shenzhen Dynamax Software Development Co.,Ltd.. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 28:CD:9C, it is Shenzhen Dynamax Software Development Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 28CD9C?
28CD9C is registered to Shenzhen Dynamax Software Development Co.,Ltd. in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Shenzhen Dynamax Software Development Co.,Ltd.'s block covers 16,777,216 addresses.
What devices use 28CD9C?
Any network device with a MAC address starting 28:CD:9C was manufactured by or for Shenzhen Dynamax Software Development Co.,Ltd..